is this the front O2 sensor? see pics (99 V70 XC AWD)

Post by **jtp** » 16 Nov 2009, 18:57

The original picture looks a lot like the rear o2 sensor I just changed this weekend. It looks like it's going into the cat, where the rear sensor goes. holler1's pic looks like the front sensor.

neworleans · Post by **neworleans** » 16 Nov 2009, 20:23

holler,

i can't really make it out from your picture because it was taken too close.
I updated m pics and added the arrow so that maybe someone can surely say it is the front or the rear o2.

thanks for your help.

Post by **holler1** » 16 Nov 2009, 20:31

jtp wrote:The original picture looks a lot like the rear o2 sensor I just changed this weekend. It looks like it's going into the cat, where the rear sensor goes. holler1's pic looks like the front sensor.

Yeah, I think you're right. On my car, the front sensor is right below the turbo. Maybe the 99 is a little different. Here is another photo of mine (front) from directly below.

: front O2 sensor from Nov2009.jpg (160.13 KiB) Viewed 4921 times

neworleans · Post by **neworleans** » 17 Nov 2009, 09:52

maybe i should just bring to someone to put it for me?

Post by **jtp** » 17 Nov 2009, 10:02

I really think it looks like your rear sensor but I'm suprised none of the more experienced people has given you a firm answer. If you can show a pic of the side of your car and show how far back it is that might make it clearer.

Even once you ID it though, the rear sensor was really hard to do. If I hadn't read here to buy PB blaster to loosen the sensor it wouldn't have worked. Even then it took about 1/2 an hour of pulling as hard as I could. And you need a good bit of gear, a 12" extension a flexibile joint before the special o2 socket. I don't know what your experience level is but it was right at the limit of what I can do by myself on this car.

Post by **confused_al** » 17 Nov 2009, 11:07

: lg_e4f9cf3e-d567-4ea3-a3ad-63882aeeb583.gif (27.54 KiB) Viewed 4776 times

http://www.eeuroparts.com/Main/PartsResults.aspx

mamali · Post by **mamali** » 17 Nov 2009, 13:47

I replaced both of my O2 sensors on a 98 V70 XC and still the check engine light is on!!!! We reste it a few times, took the battery off no help at all.

Post by **confused_al** » 17 Nov 2009, 13:55

mamali wrote:I replaced both of my O2 sensors on a 98 V70 XC and still the check engine light is on!!!!

I wouldn't be surprised if these are eBay specials. Bosch "OE direct fit" is only way to go.

neworleans · Post by **neworleans** » 17 Nov 2009, 14:38

that is what i bought on amazon, i hope it will work... I think I am going to have my friend install it, since he works at the volvo service, he will be able to reset the system.

Post by **Pauloil** » 17 Nov 2009, 20:52

have you done a spark plug before?
an O2 is not much different
go to volvospeed.com and read bay13 about the sensor
chill your anxiety and get under the car and look
if you want, go buy an O2 socket or use the 7/8
the clip holding the wire in is not hard to get out
when I did mine on my 850, I did both

is this the front O2 sensor? see pics (99 V70 XC AWD)

Re: is this the front O2 sensor? see pics (99 V70 XC AWD)